Notes we wes > Photoelectric effect [3] - Timer What is the maximum wavelength of incident light that can produc...
• Timer Notes Evaluate Feedback 9 Print What is the maximum wavelength of incident light that can produce photoelectrons from silver? The work function for silver is O=2.93 eV. Submit Answer Tries 0/20 In this experiment, what is the minimal potential needed to fully stop the electrons if the wavelength of the incident light is 391 nm? ( (Submit Answer Tries 0/20 e Post Discussion 4 Send Feedback
What is the maximum wavelength of incident light that can produce photoelectrons from silver? The work function for silver is Φ=2.93 eV. Tries 0/20 In this experiment, what is the minimal potential needed to fully stop the electrons if the wavelength of the incident light is 301 nm?
what is the maximum wavelength of incident light that can produce photoelectrons from silver? The work function for silver is Φ=2.93 eV, 4.23x102 nm You are correct. Previous Tries In this experiment, what is the minimal potential needed to fully stop the electrons if the wavelength of the incident light is 375 nm? Submit Answer Incorrect. Tries 5/99 Previous Tries
Course Contents HOMEWORK Set 9 ( due Weds 11 ... Photoelectric effect (2) • Timer Notes Evaluate Feedback The work function of a certain metal is Q = 2.95 eV. Determine the minimum frequency of light fo for which photoelectrons are emitte from the metal. (Planck's constant is: h = 4.1357x10-15 eVs.) Submit Answer Tries 0/20 Determine the corresponding wavelength of light. (Possibly useful constant: hc - 1240 eVnm.) Submit Answer Tries 0/20 Calculate the kinetic energy of the emitted...
The threshold wavelength for the photoelectric effect for silver is 262 nm. What is the work function 0for silver? What is the maximum kinetic energy K Emax of an emitted electron if the incident light has a wavelength of 212 nm? KEmax =
Please show steps and show equations used 5. The cut-off (threshold) wavelength for the photoelectric effect for silver is 325 nm. (a) (4 pts) Find the maximum speed of electrons ejected from a silver surface by ultraviolet light of wavelength 250 nm. (b) (2 pts) What would happen if the intensity of light at wavelength 250 nm were increased? (o) 2 pts) If the silver surface were illuminated by a light of wavelength 500 nm, what would happen? Explain (d)...
10) A photoelectric effect experiment is done using light of some wavelength 2. The photoelectrons are observed to have a maximum kinetic energy of 7.0 eV. If the experiment is repeated using light of twice that wavelength (22 =221), on the same metal, it is found that the maximum electron kinetic energy is 2 eV. What is the work function of the metal?
9. The work function for silver is 4.73 eV. Ultraviolet light of wavelength 116 nm is incident on the cl a silver sample. (a) What is the photon energy of the ultraviolet light in units of eV? (b) What is the maximum kinetic energy of the ejected photoelectrons? (c) What stopping voltage would be required to stop the current of photoelectrons? (5 points) (10 points) (5 points)
4. The wavelength of the photoelectric threshold for silver is 3,250 x10-10 m. Determine the velocity of electron ejected from a silver surface by ultraviolet light of wavelength 2,536 x1010 m 5. What is the maximum wavelength (in nm) of light required to produce any current via the photoelectric effect if the anode is made of copper, which has a work function of 4.7 eV?
WILL HAVURI S I due Wed 11 Photoelectric effect (2) mer Notes Evaluate The work function of a certain metal iso = 2.95 ev. Determine the minimum frequency of light fo for which photoelectrons are emitted from the metal. (Planck's constant is: h = 4.1357x10-15 eVs.) Submit Answer Tries 0/20 Determine the corresponding wavelength of light. (Possibly useful constant: hc - 1240 eVnm.) Submit Answer Tries 0/20 Calculate the kinetic energy of the emitted electrons if the frequency of the...